twenty five hundred thousand is incorrect though.
according to the way the inputs are written, the correct input for any number larger than a million would be something like"two million five hundred thousands", is which we can add another clause to take care of the "million" part in a way similar to the "hundreds"

the instructions specifically say the max value is one million, but i had the same exact concern/confusion reading this solution as you did. It took me a few seconds to realize why this still worked.

Don't modify the input.

There is a bug in the tests:

Testig for Galatea, Linna Yamazaki, Largo, Macky Stingray
It should work for random inputs too: 'Galatea, Linna Yamazaki and 2 others like this' should equal 'Largo and Macky Stingray like this'